四川地区干旱指标估算及干旱特征分析  

Drought Index Estimation and Drought Characteristics in Sichuan Province

作　　者：王聪晓 韦英英 叶晓冰 吴徐燕 刘琰琰[4] 

机构地区：[1]福建省晋江市气象局,福建泉州362200 [2]福建省安溪县气象局,福建泉州362400 [3]福建省永春县气象局,福建泉州362600 [4]成都信息工程大学,四川成都610000

出　　处：《农业灾害研究》2017年第1期36-38,48,共4页Journal of Agricultural Catastrophology

摘　　要：四川地区干旱频发,为了预防和监测干旱,利用四川地区98个气象台站1961年至2000年的逐日降水资料,估算了四川地区干旱指标,并对四川地区的干旱特征进行分析,主要得出以下结论:标准化降水指数SPI能够有效反应四川地区的干旱特征;四川地区年际干旱的强度和站点比例呈上升趋势,南部发生频率较低,中部、东北部和东南部较高。Drought happened frequently in Sichuan Province. In order to prevent and monitor drought, daily pre- cipitation data were collected from 98 meteorological stations over Siehuan Province to calculate drought indexes and address the drought charzeteristies, The results could be concluded as follows：The standardized precipitation index（SPI） could effeetively response to the drought eharacteristies of Siehuan area. The drought intensity and the ratio of the sites with drought were rising over Siehuan region. The frequency of drought was lower in the southern Siehuan and higher in the central, northeastern and southeastern region.

关 键 词：标准化降水指数 四川 干旱指标 干旱特征 

分 类 号：S156[农业科学—土壤学]